Bought a refurb 17" MBP last week.
Specs as advertised - 2.66GHz Core i7, 4GB RAM, 500GB @ 5400 rpm.
Specs as received - 2.66Ghz Core i7, 8GB RAM, 500GB @ 7200 rpm.
Cosmetic condition was perfect. Put an OWC 120GB SSD in it, ordered Applecare from B&H for $100 less than from Apple. At 30% off sticker price, I don't think resale will be hurt much by the lack of new packaging.